Method for producing metal foams and furnace for producing same

A metal and melting furnace technology, applied in the field of melting furnaces for manufacturing the metal foam material, can solve the problems of increased production cost, dealing with danger, etc., and achieves the effect of easy handling and small volume

Inactive Publication Date: 2004-04-07
CIRCUIT FOIL LUXEMBOURG R L
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Another disadvantage of this process is the use of pure hydrogen, which can cause increased production costs and hazards in handling

Method used

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  • Method for producing metal foams and furnace for producing same
  • Method for producing metal foams and furnace for producing same
  • Method for producing metal foams and furnace for producing same

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Experimental program
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Embodiment approach

[0063] As with the first embodiment, the copper-clad polymeric substrate 122 is advanced within the furnace due to the rotation of two rollers 128 and 130 . However, it must be noted that the pulling force is not applied to the copper-clad substrate 122 , but to the copper foil 124 . And it is obvious that the copper-clad polymer substrate 122 is not in contact with the furnace plate because it is placed on the copper foil 124 . The copper-clad polymer substrate is therefore protected from damage, tearing or deformation as it travels through the furnace 110 .

[0064] From a thermal point of view, copper foil is more advantageous than conveyor belts. Indeed, a conveyor belt generally has 10 to 15kg / m 2 Surface mass density between , while the surface mass density of suitable copper foil may be in the range of 100 to 200g / m 2 between. Therefore, the thermal inertia of the copper foil is much lower than that of the conveyor belt, and the heating rate is much faster, so the e...

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Abstract

A method for producing a metal structure comprising the following steps: providing a metal-coated polymer substrate; heating the metal-coated polymer substrate in a hot zone, in which a temperature of at least 600 DEG C prevails and in which an atmosphere essentially composed of water vapor or of a mixture of water vapor and neutral gas is maintained, so as to remove the polymer substrate and form a metal structure; and cooling the metal structure in a cooling zone.

Description

field of invention [0001] The present invention relates to a method for producing metal foam from a metal-clad polymer structure and a furnace for producing the metal foam. Background of the invention [0002] The production of metal foams for the manufacture of batteries is an important topic at present, and nickel foams in particular have been widely used in the manufacture of batteries. [0003] Nickel foams are traditionally produced by first depositing nickel on a polymer foam substrate, such as polyurethane foam, and then heat-treating the nickel-coated polymer substrate. This heat treatment is generally accomplished in a continuous belt furnace having three zones. The nickel-coated polymer substrate placed on the conveyor belt first enters an oxidation zone, where it is subjected to high temperature and free oxygen, thereby causing the polymer to burn. The polymer substrate is thus removed, resulting in a nickel oxide foam structure. Immediately following the oxida...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C1/08B22F3/10B22F3/11C25D1/08F27B9/04F27B9/14F27B9/28F27D99/00H01M4/80
CPCC25D1/08B22F2999/00F27D99/007F27B9/147F27B9/28F27B9/045B22F3/1137H01M4/808B22F3/1021Y02E60/10B22F2201/05
Inventor 马克·库恩达米恩·米歇尔
Owner CIRCUIT FOIL LUXEMBOURG R L
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